QCD with Chiral Chemical Potential: Models Versus Lattice

Результат исследований: Иные виды публикацийинаянаучная

2 Цитирования (Scopus)

Аннотация

An emergence of local spatial parity breaking (LPB) in central heavy-ion collisions (HIC) at high energies is discussed. The QCD phenomenology of LPB in the fireball is induced by a difference between the number densities of right- and left-handed chiral fermions which is triggered by a chiral (axial) chemical potential. For the description of peculiarities of LPB, a number of QCD-inspired models are considered and confronted to certain lattice results. In particular, from the meson effective Lagrangian, it is found that the lightest states may become massless and some scalars turn out to be stable. In experimental studies, the asymmetry in production of longitudinal and transverse polarized states of ρ and ω mesons for different values of the invariant mass can serve as a characteristic indication of local spatial parity breaking which can be derived from an abnormal yield of dilepton pairs in the PHENIX, STAR and ALICE collaborations.
Язык оригиналаанглийский
ИздательJagiellonian University Press
Число страниц8
Место публикацииKrakow
ИзданиеActa Physica Polonica B
Том9
ISBN (электронное издание)PL ISSN 2082-7865
DOI
СостояниеОпубликовано - 2016

Серии публикаций

ИмяActa Physica Polonica B Proceedings Supplement
ИздательJagiellonian University
3
Том9
ISSN (печатная версия)1899-2358
ISSN (электронная версия)2082-7865

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